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In this lesson you'll learn how to expose, localized formatted strings from your ViewModel and bind to the values using DataBinding.

Key concepts in this lesson that you will learn:
* How to expose data to your View without exposing your Model.
* TDD approach to testing your ViewModel to ensure the expected variables exposed to your View are formatted correctly.
* How to use Android Formatting Strings from your ViewModel, while still testing inside a Unit test.
* How to use a binding expression to bind to variables exposed by the ViewModel.

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